The Precious metals (Au, Ag, Pt, Pd, Rh) adsorption on the Silicon – organic sorbents

Abstract

Sorption activity of two types of Silicon-organic sorbents for the previous metals has been studied. A polymer – poly (3- silsesquioxanilpropylthiocarbamate) - 3- silsesquioxanilpropylammonium which was obtained by the hydrolytic poly-condensation reaction and has been determined its physical, chemical characteristics and its sorption activity for the Ag(I), Au(III), Pt(IV), Pd(II), Rh(III). It has been found out that the sorbent shows high static sorption of Gold (III), Mercury (II) at acidic condition. The second a net structured silicon-organic copolymer {SiO2*2[O1.5Si(CH2)3NHC5H4N}n was synthesized by hydrolytic co-poly-condensation reaction. It likely to react as an anionit that adsorbs chloro-complex anion of the Au (III), Pt(IV), Pd(II), Rh(III).DOI: http://dx.doi.org/10.5564/mjc.v12i0.167 Mongolian Journal of Chemistry Vol.12 2011: 29-34

Keywords

• dithiocarbamate
• 2-aminopyridine
• sorption capacity
• ion-coordination